Fog signal



(No Model.) 7

E. E. MANN.

' FOG SIGNAL. v No. 380,584. Patnted Ap B, 1888.

LN'VENTOR.

.Ettoriwy (No Model.) 2 Sheets-Sheet 2.

E E. MANN.

FDG SIGNAL. I No. 380,584. Patented AprQS, 1888.

S WITNESSES. INVENTOR,

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UNITED STATES Munich.

PATENT EDGAR EBENEZER MANN, OF NEWBURG, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO WILLIAM J. SCOTT, OF SAME PLACE.

FOG-SIGNAL.

SPECIFICATION forming part of Letters Patent No. 3 dated April 1838- Application filed October '26, 1887. Serial No. 253,464.

To all whom it may concern:

Be it known that LEDGAREBENEZER MANN, residing at Newburg, in the county of Orange and State of New York, have invented certain new and useful Improvements in Fog-Signals, of which the following is a. specification, reference being bad therein to the accompanying drawings.

This invention relates to fog-signals, and is mainly applicable to stationary or so-called pier-signals, although some features may be used with floating or buoy signals or signals on shipboard.

The object of the invention is to produce a signal which may givea continuous or intermitting sound or a succession of sounds in the same or in different keys.

In the drawings, Figure 1 is a central vertical section of a signal embodying the main features of my invention. Fig. 2 is a diagram showing part of the driving mechanism in section and elevation. Fig. 3 is an end view of the clock-work mechanism. Fig. 4 is a perspective of part of one of the sounding pipes or horns. Figs. 5, 6, and 7 are details of the pipe hereinafter referred to. v

A A indicate tubes leading to the pipes or horns B B and suitably supported in a box, frame, or casing, G. The tubes A communicate directly with the pipes 13 without the intervention of valves. Each tube A acts as an air-cylinder and is provided with a piston, D. The pistons D are preferably made hollow,for the sake of lightness, and fit so closely into the tubes A that they act as air-forcing or suction plungers. The pistons D are connected by pitmen D with a rocker, E, which is pivoted at F to a suitable support in the frame. The oscillation of rocker E on its pivot or fulcrum will raise one piston D and depress the other simultaneously, thus expelling air from one tube A through pipe B, and will draw in air through the other pipe or horn into the other tube A at the same time.

Beneath the fulcrumed barE there is a mush room-shaped rocker, G, supported at the upper end of a pendulum, H. The pendulum H has a ball-bearing, I, which rocks in any direction in its socket K. The pendulum H has an extensible part, L, which may be made to raise or lower the weight N and can be secured (No model.)

perforation, b, and the metal above said perforation, which constitutes the tonguedof the horn, is beveled to a sharp edge, the bevel being on the outer side. The inner side of the tube may have guide-ribs e, which serve to center and guide the plunger or muffle f. This mufie is moved up or down by screw h.

actuated by nut i, which not has a bearing at K on the top of the horn. By moving the mufifile along the sideof the horn, the muiiie having a bearing thereon, the pitch of the sound produced by the passage of air through the horn maybe regulated. The horns may be made to have similar or different sounds in this manner, or the horns may be of a different sound or pitch.

The rotating disk 1? is driven by a coiled spring in the barrel Q, as is usual in clockwork mechanism. This spring may also be reenforced by a weight, it, acting through a train of intermediates, S, T, and U, the ratchet-wheel U and pawl V serving to restrain the spring in barrel Q, from unwinding and causing the weight to act as a re-enforce to the spring.

The weight may be wound up by crank XV, and the spring may be wound by the weight or by a key on post X.

The wrist-pin O is adjustable in slot 0, and by the adjustment the throw of the pitman 0 may be made more or less, as is usual in crank and pitman connections. The extension of the pendulum provides for a longer or shorter stroke of the pistons D, and thus regulates the duration of the sound. By adjusting the throw of thepitman controlling this pendulum movement the movement of one piston may be made longer than the other.

As the pendulum is hung on a ball-bearing, the movenientin any direction rocks the mushroom, and so elevates the lever more or less. This provides for an automatic movement, as on a buoy.

I claim;,

as described, and a pendulum supported on a universal bearing having a mushroom head in position to engage said lever as the pendulum swings, as set forth.

4. The combination,in a fog-signal,of a rocking lever connected to the driving-pistons, a pendulum with mushroom head in position to engage the lever, and an extensible rod to said pendulum, as set forth;

5. In a fog-signal, the combination, with two horns, their pistons, and the actuating-lever, of a pendulum having a mushroom head and an extensible shaft, and a rotating disk connected to said pendulum, as set forth.

6. In a fog-signal, the combination,with the air-forcing pistons, of an actuating-pendulum therefor, said pendulum having a rod adj ustable in length, and a disk connected by a pit man to said pendulum, said pitman having an adj ustable pin-connection in the face of the disk, as set forth.

7. The combination,with the driving-pendulum of a fog-signal, of a driving spring-motor and a weight-motor, both spring and weight being connected to the axle of the driving-disk, as set forth.

8. In a fog-signal, a pipe or horn having a vibrating tongue at one side, a muffler in condition to engage said tongue, and a set-screw by which the position of the muffler relative to the tongue may be adjusted.

9. In a fog-signal, the combination of two horns, air-forcing mechanism, substantially as described, for sounding the horns, and mufflers bearing on the tongues and adjustable rela-' tively thereto, by which the tones or pitch of the horns may be varied, as set forth.

10. The combination, in a fogsignal, of a plurality of horns, actuating-plungers therefor, and an adj ustablependulum driving mechanism, by which the stroke of the plungers may be regulated or varied, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

EDGAR EBENEZER MANN.

Witnesses:

GEORGE T. Lawson, L. S. STERRIT. 

